97139942 has 8 divisors (see below), whose sum is σ = 146010576. Its totient is φ = 48469752.

The previous prime is 97139927. The next prime is 97139993. The reversal of 97139942 is 24993179.

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

It is a super-3 number, since 3×97139942³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97139893 and 97139902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48893 + ... + 50840.

It is an arithmetic number, because the mean of its divisors is an integer number (18251322).

Almost surely, 2^97139942 is an apocalyptic number.

97139942 is a deficient number, since it is larger than the sum of its proper divisors (48870634).

97139942 is a wasteful number, since it uses less digits than its factorization.

97139942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100222.

The product of its digits is 122472, while the sum is 44.

The square root of 97139942 is about 9855.9597198852. The cubic root of 97139942 is about 459.6909423702.

The spelling of 97139942 in words is "ninety-seven million, one hundred thirty-nine thousand, nine hundred forty-two".