145123957 has 8 divisors (see below), whose sum is σ = 166649760. Its totient is φ = 124986960.

The previous prime is 145123889. The next prime is 145123961. The reversal of 145123957 is 759321541.

145123957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145123957 - 2⁷ = 145123829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145123457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346978 + ... + 347395.

It is an arithmetic number, because the mean of its divisors is an integer number (20831220).

Almost surely, 2^145123957 is an apocalyptic number.

It is an amenable number.

145123957 is a deficient number, since it is larger than the sum of its proper divisors (21525803).

145123957 is a wasteful number, since it uses less digits than its factorization.

145123957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694403.

The product of its digits is 37800, while the sum is 37.

The square root of 145123957 is about 12046.7405135165. The cubic root of 145123957 is about 525.5084501250.

The spelling of 145123957 in words is "one hundred forty-five million, one hundred twenty-three thousand, nine hundred fifty-seven".