151997065 has 8 divisors (see below), whose sum is σ = 198978048. Its totient is φ = 110543280.

The previous prime is 151997063. The next prime is 151997077. The reversal of 151997065 is 560799151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151997065 - 2¹ = 151997063 is a prime.

It is a super-2 number, since 2×151997065² = 46206215537228450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151997063) 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, 1381737 + ... + 1381846.

It is an arithmetic number, because the mean of its divisors is an integer number (24872256).

Almost surely, 2^151997065 is an apocalyptic number.

It is an amenable number.

151997065 is a deficient number, since it is larger than the sum of its proper divisors (46980983).

151997065 is a wasteful number, since it uses less digits than its factorization.

151997065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763599.

The product of its (nonzero) digits is 85050, while the sum is 43.

The square root of 151997065 is about 12328.7089753956. The cubic root of 151997065 is about 533.6768947403.

The spelling of 151997065 in words is "one hundred fifty-one million, nine hundred ninety-seven thousand, sixty-five".