153497970 has 64 divisors (see below), whose sum is σ = 410417280. Its totient is φ = 40824000.

The previous prime is 153497921. The next prime is 153498031. The reversal of 153497970 is 79794351.

153497970 is a `hidden beast` number, since 153 + 497 + 9 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188865 + ... + 189675.

It is an arithmetic number, because the mean of its divisors is an integer number (6412770).

Almost surely, 2^153497970 is an apocalyptic number.

153497970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 153497970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205208640).

153497970 is an abundant number, since it is smaller than the sum of its proper divisors (256919310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153497970 is a wasteful number, since it uses less digits than its factorization.

153497970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1522 counting only the distinct ones).

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

The square root of 153497970 is about 12389.4297689603. The cubic root of 153497970 is about 535.4277535155.

The spelling of 153497970 in words is "one hundred fifty-three million, four hundred ninety-seven thousand, nine hundred seventy".