245974142 has 4 divisors (see below), whose sum is σ = 368961216. Its totient is φ = 122987070.

The previous prime is 245974123. The next prime is 245974159. The reversal of 245974142 is 241479542.

245974142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241479542 = 2 ⋅120739771.

It is a junction number, because it is equal to n+sod(n) for n = 245974096 and 245974105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61493534 + ... + 61493537.

It is an arithmetic number, because the mean of its divisors is an integer number (92240304).

Almost surely, 2^245974142 is an apocalyptic number.

245974142 is a deficient number, since it is larger than the sum of its proper divisors (122987074).

245974142 is a wasteful number, since it uses less digits than its factorization.

245974142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122987073.

The product of its digits is 80640, while the sum is 38.

The square root of 245974142 is about 15683.5627967627. The cubic root of 245974142 is about 626.5607006708.

The spelling of 245974142 in words is "two hundred forty-five million, nine hundred seventy-four thousand, one hundred forty-two".