1625121142 has 8 divisors (see below), whose sum is σ = 2437906176. Its totient is φ = 812485752.

The previous prime is 1625121119. The next prime is 1625121151. The reversal of 1625121142 is 2411215261.

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

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, 4453 + ... + 57184.

It is an arithmetic number, because the mean of its divisors is an integer number (304738272).

Almost surely, 2^1625121142 is an apocalyptic number.

1625121142 is a deficient number, since it is larger than the sum of its proper divisors (812785034).

1625121142 is a wasteful number, since it uses less digits than its factorization.

1625121142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74822.

The product of its digits is 960, while the sum is 25.

The square root of 1625121142 is about 40312.7912950716. The cubic root of 1625121142 is about 1175.6965580459.

The spelling of 1625121142 in words is "one billion, six hundred twenty-five million, one hundred twenty-one thousand, one hundred forty-two".