145369791 has 36 divisors (see below), whose sum is σ = 243869808. Its totient is φ = 81741312.

The previous prime is 145369789. The next prime is 145369811. The reversal of 145369791 is 197963541.

It is not a de Polignac number, because 145369791 - 2¹ = 145369789 is a prime.

It is a super-2 number, since 2×145369791² = 42264752270767362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145369711) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 335511 + ... + 335943.

Almost surely, 2^145369791 is an apocalyptic number.

145369791 is a deficient number, since it is larger than the sum of its proper divisors (98500017).

145369791 is an equidigital number, since it uses as much as digits as its factorization.

145369791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 516 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 145369791 is about 12056.9395370467. The cubic root of 145369791 is about 525.8050126161.

The spelling of 145369791 in words is "one hundred forty-five million, three hundred sixty-nine thousand, seven hundred ninety-one".