149031456 has 48 divisors (see below), whose sum is σ = 447096384. Its totient is φ = 42580224.

The previous prime is 149031451. The next prime is 149031481. The reversal of 149031456 is 654130941.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (149031451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110215 + ... + 111558.

It is an arithmetic number, because the mean of its divisors is an integer number (9314508).

Almost surely, 2^149031456 is an apocalyptic number.

149031456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

149031456 is an abundant number, since it is smaller than the sum of its proper divisors (298064928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149031456 is a wasteful number, since it uses less digits than its factorization.

149031456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221793 (or 221785 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 149031456 is about 12207.8440357010. The cubic root of 149031456 is about 530.1832237048.

The spelling of 149031456 in words is "one hundred forty-nine million, thirty-one thousand, four hundred fifty-six".