149004492121 has 27 divisors (see below), whose sum is σ = 156685429173. Its totient is φ = 141696917880.

The previous prime is 149004492103. The next prime is 149004492137. The reversal of 149004492121 is 121294400941.

The square root of 149004492121 is 386011.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 149004492121 - 2⁹ = 149004491609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149004462121) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 780128136 + ... + 780128326.

Almost surely, 2^149004492121 is an apocalyptic number.

149004492121 is the 386011-st square number.

149004492121 is the 193006-th centered octagonal number.

It is an amenable number.

149004492121 is a deficient number, since it is larger than the sum of its proper divisors (7680937052).

149004492121 is an frugal number, since it uses more digits than its factorization.

149004492121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 149004492121 in words is "one hundred forty-nine billion, four million, four hundred ninety-two thousand, one hundred twenty-one".