142115499 has 16 divisors (see below), whose sum is σ = 210733600. Its totient is φ = 94657248.

The previous prime is 142115489. The next prime is 142115507. The reversal of 142115499 is 994511241.

It is a happy number.

It is not a de Polignac number, because 142115499 - 2¹³ = 142107307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142115429) 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, 44157 + ... + 47265.

It is an arithmetic number, because the mean of its divisors is an integer number (13170850).

Almost surely, 2^142115499 is an apocalyptic number.

142115499 is a deficient number, since it is larger than the sum of its proper divisors (68618101).

142115499 is a wasteful number, since it uses less digits than its factorization.

142115499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811 (or 4805 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 142115499 is about 11921.2205331501. The cubic root of 142115499 is about 521.8517547058.

The spelling of 142115499 in words is "one hundred forty-two million, one hundred fifteen thousand, four hundred ninety-nine".