151149661 has 8 divisors (see below), whose sum is σ = 163678424. Its totient is φ = 138749760.

The previous prime is 151149659. The next prime is 151149683. The reversal of 151149661 is 166941151.

It can be written as a sum of positive squares in 4 ways, for example, as 7225 + 151142436 = 85^2 + 12294^2 .

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 151149661 - 2¹ = 151149659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151149461) 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, 29766 + ... + 34471.

It is an arithmetic number, because the mean of its divisors is an integer number (20459803).

Almost surely, 2^151149661 is an apocalyptic number.

It is an amenable number.

151149661 is a deficient number, since it is larger than the sum of its proper divisors (12528763).

151149661 is a wasteful number, since it uses less digits than its factorization.

151149661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64431.

The product of its digits is 6480, while the sum is 34.

The square root of 151149661 is about 12294.2938390133. The cubic root of 151149661 is about 532.6832725261.

The spelling of 151149661 in words is "one hundred fifty-one million, one hundred forty-nine thousand, six hundred sixty-one".