151661051 has 4 divisors (see below), whose sum is σ = 153078552. Its totient is φ = 150243552.

The previous prime is 151661047. The next prime is 151661071. The reversal of 151661051 is 150166151.

151661051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151661051 - 2² = 151661047 is a prime.

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 151661051.

It is not an unprimeable number, because it can be changed into a prime (151661071) 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, 708590 + ... + 708803.

It is an arithmetic number, because the mean of its divisors is an integer number (38269638).

Almost surely, 2^151661051 is an apocalyptic number.

151661051 is a deficient number, since it is larger than the sum of its proper divisors (1417501).

151661051 is a wasteful number, since it uses less digits than its factorization.

151661051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417500.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 151661051 is about 12315.0741370079. The cubic root of 151661051 is about 533.2833450110.

The spelling of 151661051 in words is "one hundred fifty-one million, six hundred sixty-one thousand, fifty-one".