145693029 has 4 divisors (see below), whose sum is σ = 194257376. Its totient is φ = 97128684.

The previous prime is 145693021. The next prime is 145693033. The reversal of 145693029 is 920396541.

145693029 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 not a de Polignac number, because 145693029 - 2³ = 145693021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145693021) 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, 24282169 + ... + 24282174.

It is an arithmetic number, because the mean of its divisors is an integer number (48564344).

Almost surely, 2^145693029 is an apocalyptic number.

It is an amenable number.

145693029 is a deficient number, since it is larger than the sum of its proper divisors (48564347).

145693029 is an equidigital number, since it uses as much as digits as its factorization.

145693029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48564346.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 145693029 is about 12070.3367392960. The cubic root of 145693029 is about 526.1944432373.

The spelling of 145693029 in words is "one hundred forty-five million, six hundred ninety-three thousand, twenty-nine".