142697235 has 16 divisors (see below), whose sum is σ = 241746336. Its totient is φ = 71628288.

The previous prime is 142697231. The next prime is 142697249. The reversal of 142697235 is 532796241.

It is not a de Polignac number, because 142697235 - 2² = 142697231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142697193 and 142697202.

It is not an unprimeable number, because it can be changed into a prime (142697231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279544 + ... + 280053.

It is an arithmetic number, because the mean of its divisors is an integer number (15109146).

Almost surely, 2^142697235 is an apocalyptic number.

142697235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142697235 is a deficient number, since it is larger than the sum of its proper divisors (99049101).

142697235 is a wasteful number, since it uses less digits than its factorization.

142697235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559622.

The product of its digits is 90720, while the sum is 39.

The square root of 142697235 is about 11945.5947947350. The cubic root of 142697235 is about 522.5628351742.

The spelling of 142697235 in words is "one hundred forty-two million, six hundred ninety-seven thousand, two hundred thirty-five".