145153494 has 24 divisors (see below), whose sum is σ = 318483360. Its totient is φ = 47771568.

The previous prime is 145153487. The next prime is 145153513. The reversal of 145153494 is 494351541.

It is a happy number.

145153494 is a `hidden beast` number, since 14 + 5 + 153 + 494 = 666.

It is a super-3 number, since 3×145153494³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49617 + ... + 52460.

It is an arithmetic number, because the mean of its divisors is an integer number (13270140).

Almost surely, 2^145153494 is an apocalyptic number.

145153494 is an abundant number, since it is smaller than the sum of its proper divisors (173329866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145153494 is a wasteful number, since it uses less digits than its factorization.

145153494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102164 (or 102161 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 145153494 is about 12047.9663844153. The cubic root of 145153494 is about 525.5440998562.

It can be divided in two parts, 1451 and 53494, that added together give a palindrome (54945).

The spelling of 145153494 in words is "one hundred forty-five million, one hundred fifty-three thousand, four hundred ninety-four".