149159651 has 4 divisors (see below), whose sum is σ = 149435904. Its totient is φ = 148883400.

The previous prime is 149159641. The next prime is 149159653. The reversal of 149159651 is 156951941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156951941 = 47 ⋅3339403.

It is a cyclic number.

It is not a de Polignac number, because 149159651 - 2¹⁰ = 149158627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149159599 and 149159608.

It is not an unprimeable number, because it can be changed into a prime (149159653) 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, 137315 + ... + 138396.

It is an arithmetic number, because the mean of its divisors is an integer number (37358976).

Almost surely, 2^149159651 is an apocalyptic number.

149159651 is a deficient number, since it is larger than the sum of its proper divisors (276253).

149159651 is an equidigital number, since it uses as much as digits as its factorization.

149159651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276252.

The product of its digits is 48600, while the sum is 41.

The square root of 149159651 is about 12213.0934246816. The cubic root of 149159651 is about 530.3351991366.

The spelling of 149159651 in words is "one hundred forty-nine million, one hundred fifty-nine thousand, six hundred fifty-one".