149090437281 has 16 divisors (see below), whose sum is σ = 199764768384. Its totient is φ = 98905657344.

The previous prime is 149090437273. The next prime is 149090437283. The reversal of 149090437281 is 182734090941.

It is not a de Polignac number, because 149090437281 - 2³ = 149090437273 is a prime.

It is a super-2 number, since 2×149090437281² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149090437281.

It is not an unprimeable number, because it can be changed into a prime (149090437283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659535 + ... + 856251.

It is an arithmetic number, because the mean of its divisors is an integer number (12485298024).

Almost surely, 2^149090437281 is an apocalyptic number.

It is an amenable number.

149090437281 is a deficient number, since it is larger than the sum of its proper divisors (50674331103).

149090437281 is a wasteful number, since it uses less digits than its factorization.

149090437281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197960.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 149090437281 in words is "one hundred forty-nine billion, ninety million, four hundred thirty-seven thousand, two hundred eighty-one".