145989390236 has 24 divisors (see below), whose sum is σ = 257895718080. Its totient is φ = 72305265600.

The previous prime is 145989390161. The next prime is 145989390251. The reversal of 145989390236 is 632093989541.

It is a super-2 number, since 2×145989390236² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622141 + ... + 1709771.

It is an arithmetic number, because the mean of its divisors is an integer number (10745654920).

Almost surely, 2^145989390236 is an apocalyptic number.

It is an amenable number.

145989390236 is a deficient number, since it is larger than the sum of its proper divisors (111906327844).

145989390236 is a wasteful number, since it uses less digits than its factorization.

145989390236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91565 (or 91563 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 145989390236 in words is "one hundred forty-five billion, nine hundred eighty-nine million, three hundred ninety thousand, two hundred thirty-six".