151293197 has 6 divisors (see below), whose sum is σ = 166297614. Its totient is φ = 137539160.

The previous prime is 151293193. The next prime is 151293209. The reversal of 151293197 is 791392151.

It can be written as a sum of positive squares in only one way, i.e., 141395881 + 9897316 = 11891^2 + 3146^2 .

It is not a de Polignac number, because 151293197 - 2² = 151293193 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 151293197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151293193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 625058 + ... + 625299.

It is an arithmetic number, because the mean of its divisors is an integer number (27716269).

Almost surely, 2^151293197 is an apocalyptic number.

It is an amenable number.

151293197 is a deficient number, since it is larger than the sum of its proper divisors (15004417).

151293197 is a wasteful number, since it uses less digits than its factorization.

151293197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250379 (or 1250368 counting only the distinct ones).

The product of its digits is 17010, while the sum is 38.

The square root of 151293197 is about 12300.1299586630. The cubic root of 151293197 is about 532.8518362217.

The spelling of 151293197 in words is "one hundred fifty-one million, two hundred ninety-three thousand, one hundred ninety-seven".