149453977 has 8 divisors (see below), whose sum is σ = 156101760. Its totient is φ = 142818720.

The previous prime is 149453947. The next prime is 149453999. The reversal of 149453977 is 779354941.

149453977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149453977 - 2¹⁹ = 148929689 is a prime.

It is a super-2 number, since 2×149453977² = 44672982482233058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149453977.

It is not an unprimeable number, because it can be changed into a prime (149453947) 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, 27924 + ... + 32842.

It is an arithmetic number, because the mean of its divisors is an integer number (19512720).

Almost surely, 2^149453977 is an apocalyptic number.

It is an amenable number.

149453977 is a deficient number, since it is larger than the sum of its proper divisors (6647783).

149453977 is a wasteful number, since it uses less digits than its factorization.

149453977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263.

The product of its digits is 952560, while the sum is 49.

The square root of 149453977 is about 12225.1370953458. The cubic root of 149453977 is about 530.6837940396.

The spelling of 149453977 in words is "one hundred forty-nine million, four hundred fifty-three thousand, nine hundred seventy-seven".