145906269 has 4 divisors (see below), whose sum is σ = 194541696. Its totient is φ = 97270844.

The previous prime is 145906261. The next prime is 145906303. The reversal of 145906269 is 962609541.

It is a happy number.

145906269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145906269 - 2³ = 145906261 is a prime.

It is a super-2 number, since 2×145906269² = 42577278667000722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145906269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145906261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24317709 + ... + 24317714.

It is an arithmetic number, because the mean of its divisors is an integer number (48635424).

Almost surely, 2^145906269 is an apocalyptic number.

It is an amenable number.

145906269 is a deficient number, since it is larger than the sum of its proper divisors (48635427).

145906269 is an equidigital number, since it uses as much as digits as its factorization.

145906269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48635426.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 145906269 is about 12079.1667345062. The cubic root of 145906269 is about 526.4510352558.

The spelling of 145906269 in words is "one hundred forty-five million, nine hundred six thousand, two hundred sixty-nine".