151112261 has 8 divisors (see below), whose sum is σ = 152931864. Its totient is φ = 149299200.

The previous prime is 151112257. The next prime is 151112279. The reversal of 151112261 is 162211151.

It can be written as a sum of positive squares in 4 ways, for example, as 118679236 + 32433025 = 10894^2 + 5695^2 .

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 151112261 - 2² = 151112257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151112161) 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, 56981 + ... + 59573.

It is an arithmetic number, because the mean of its divisors is an integer number (19116483).

Almost surely, 2^151112261 is an apocalyptic number.

It is an amenable number.

151112261 is a deficient number, since it is larger than the sum of its proper divisors (1819603).

151112261 is a wasteful number, since it uses less digits than its factorization.

151112261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its digits is 120, while the sum is 20.

The square root of 151112261 is about 12292.7727140788. The cubic root of 151112261 is about 532.6393337402.

The spelling of 151112261 in words is "one hundred fifty-one million, one hundred twelve thousand, two hundred sixty-one".