149377651 has 4 divisors (see below), whose sum is σ = 149423400. Its totient is φ = 149331904.

The previous prime is 149377643. The next prime is 149377667. The reversal of 149377651 is 156773941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156773941 = 349 ⋅449209.

It is a cyclic number.

It is not a de Polignac number, because 149377651 - 2³ = 149377643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149377598 and 149377607.

It is not an unprimeable number, because it can be changed into a prime (149372651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17566 + ... + 24643.

It is an arithmetic number, because the mean of its divisors is an integer number (37355850).

Almost surely, 2^149377651 is an apocalyptic number.

149377651 is a deficient number, since it is larger than the sum of its proper divisors (45749).

149377651 is an equidigital number, since it uses as much as digits as its factorization.

149377651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45748.

The product of its digits is 158760, while the sum is 43.

The square root of 149377651 is about 12222.0150139001. The cubic root of 149377651 is about 530.5934387581.

The spelling of 149377651 in words is "one hundred forty-nine million, three hundred seventy-seven thousand, six hundred fifty-one".