149551497 has 24 divisors (see below), whose sum is σ = 225950400. Its totient is φ = 95138208.

The previous prime is 149551453. The next prime is 149551541. The reversal of 149551497 is 794155941.

149551497 is a `hidden beast` number, since 1 + 4 + 9 + 551 + 4 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (149551453) and next prime (149551541).

It is not a de Polignac number, because 149551497 - 2⁶ = 149551433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149551097) 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, 146254 + ... + 147272.

It is an arithmetic number, because the mean of its divisors is an integer number (9414600).

Almost surely, 2^149551497 is an apocalyptic number.

It is an amenable number.

149551497 is a deficient number, since it is larger than the sum of its proper divisors (76398903).

149551497 is a wasteful number, since it uses less digits than its factorization.

149551497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1754 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 149551497 is about 12229.1249482537. The cubic root of 149551497 is about 530.7991941836.

The spelling of 149551497 in words is "one hundred forty-nine million, five hundred fifty-one thousand, four hundred ninety-seven".