149719001523 has 24 divisors (see below), whose sum is σ = 250080093648. Its totient is φ = 78972659136.

The previous prime is 149719001519. The next prime is 149719001557. The reversal of 149719001523 is 325100917941.

It is not a de Polignac number, because 149719001523 - 2² = 149719001519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149719001503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39171036 + ... + 39174857.

It is an arithmetic number, because the mean of its divisors is an integer number (10420003902).

Almost surely, 2^149719001523 is an apocalyptic number.

149719001523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

149719001523 is a deficient number, since it is larger than the sum of its proper divisors (100361092125).

149719001523 is a wasteful number, since it uses less digits than its factorization.

149719001523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78345923 (or 78345916 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 149719001523 in words is "one hundred forty-nine billion, seven hundred nineteen million, one thousand, five hundred twenty-three".