145394156 has 12 divisors (see below), whose sum is σ = 267831480. Its totient is φ = 68870880.

The previous prime is 145394153. The next prime is 145394167. The reversal of 145394156 is 651493541.

It is a super-2 number, since 2×145394156² = 42278921197904672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (145394153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956465 + ... + 956616.

It is an arithmetic number, because the mean of its divisors is an integer number (22319290).

Almost surely, 2^145394156 is an apocalyptic number.

It is an amenable number.

145394156 is a deficient number, since it is larger than the sum of its proper divisors (122437324).

145394156 is a wasteful number, since it uses less digits than its factorization.

145394156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913104 (or 1913102 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 145394156 is about 12057.9499086702. The cubic root of 145394156 is about 525.8343871819.

The spelling of 145394156 in words is "one hundred forty-five million, three hundred ninety-four thousand, one hundred fifty-six".