149503890531 has 4 divisors (see below), whose sum is σ = 199338520712. Its totient is φ = 99669260352.

The previous prime is 149503890491. The next prime is 149503890553. The reversal of 149503890531 is 135098305941.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 149503890531 - 2⁶ = 149503890467 is a prime.

It is a super-2 number, since 2×149503890531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149503890581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24917315086 + ... + 24917315091.

It is an arithmetic number, because the mean of its divisors is an integer number (49834630178).

Almost surely, 2^149503890531 is an apocalyptic number.

149503890531 is a deficient number, since it is larger than the sum of its proper divisors (49834630181).

149503890531 is an equidigital number, since it uses as much as digits as its factorization.

149503890531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49834630180.

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 149503890531 in words is "one hundred forty-nine billion, five hundred three million, eight hundred ninety thousand, five hundred thirty-one".