153997047 has 12 divisors (see below), whose sum is σ = 230110920. Its totient is φ = 99124368.

The previous prime is 153997043. The next prime is 153997049. The reversal of 153997047 is 740799351.

153997047 is a `hidden beast` number, since 1 + 539 + 9 + 70 + 47 = 666.

It is not a de Polignac number, because 153997047 - 2² = 153997043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153996993 and 153997011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153997043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294753 + ... + 295274.

It is an arithmetic number, because the mean of its divisors is an integer number (19175910).

Almost surely, 2^153997047 is an apocalyptic number.

153997047 is a deficient number, since it is larger than the sum of its proper divisors (76113873).

153997047 is a wasteful number, since it uses less digits than its factorization.

153997047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590062 (or 590059 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 153997047 is about 12409.5546656598. The cubic root of 153997047 is about 536.0074150140.

The spelling of 153997047 in words is "one hundred fifty-three million, nine hundred ninety-seven thousand, forty-seven".