149797653 has 16 divisors (see below), whose sum is σ = 212782080. Its totient is φ = 93466224.

The previous prime is 149797651. The next prime is 149797657. The reversal of 149797653 is 356797941.

It is not a de Polignac number, because 149797653 - 2¹ = 149797651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149797596 and 149797605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149797651) 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, 11101 + ... + 20562.

It is an arithmetic number, because the mean of its divisors is an integer number (13298880).

Almost surely, 2^149797653 is an apocalyptic number.

It is an amenable number.

149797653 is a deficient number, since it is larger than the sum of its proper divisors (62984427).

149797653 is a wasteful number, since it uses less digits than its factorization.

149797653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31768.

The product of its digits is 1428840, while the sum is 51.

The square root of 149797653 is about 12239.1851444449. The cubic root of 149797653 is about 531.0902595530.

The spelling of 149797653 in words is "one hundred forty-nine million, seven hundred ninety-seven thousand, six hundred fifty-three".