102147342 has 32 divisors (see below), whose sum is σ = 223344000. Its totient is φ = 30887520.

The previous prime is 102147323. The next prime is 102147361. The reversal of 102147342 is 243741201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102147323) and next prime (102147361).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35784 + ... + 38532.

It is an arithmetic number, because the mean of its divisors is an integer number (6979500).

Almost surely, 2^102147342 is an apocalyptic number.

102147342 is an abundant number, since it is smaller than the sum of its proper divisors (121196658).

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

102147342 is a wasteful number, since it uses less digits than its factorization.

102147342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 102147342 is about 10106.7968219412. The cubic root of 102147342 is about 467.4577418026.

Adding to 102147342 its reverse (243741201), we get a palindrome (345888543).

The spelling of 102147342 in words is "one hundred two million, one hundred forty-seven thousand, three hundred forty-two".