153421697 has 32 divisors (see below), whose sum is σ = 189858816. Its totient is φ = 122054400.

The previous prime is 153421669. The next prime is 153421711. The reversal of 153421697 is 796124351.

It is not a de Polignac number, because 153421697 - 2⁶ = 153421633 is a prime.

It is a super-2 number, since 2×153421697² = 47076434220719618, which contains 22 as substring.

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 153421697.

It is not an unprimeable number, because it can be changed into a prime (153421657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234623 + ... + 235275.

It is an arithmetic number, because the mean of its divisors is an integer number (5933088).

Almost surely, 2^153421697 is an apocalyptic number.

It is an amenable number.

153421697 is a deficient number, since it is larger than the sum of its proper divisors (36437119).

153421697 is a wasteful number, since it uses less digits than its factorization.

153421697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its digits is 45360, while the sum is 38.

The square root of 153421697 is about 12386.3512383591. The cubic root of 153421697 is about 535.3390543031.

The spelling of 153421697 in words is "one hundred fifty-three million, four hundred twenty-one thousand, six hundred ninety-seven".