1972595249 has 8 divisors (see below), whose sum is σ = 1988712000. Its totient is φ = 1956494800.

The previous prime is 1972595231. The next prime is 1972595263. The reversal of 1972595249 is 9425952791.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1972595249 is a prime.

It is a super-2 number, since 2×1972595249² = 7782264032754744002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1972595249.

It is not an unprimeable number, because it can be changed into a prime (1972592249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390359 + ... + 395379.

It is an arithmetic number, because the mean of its divisors is an integer number (248589000).

Almost surely, 2^1972595249 is an apocalyptic number.

It is an amenable number.

1972595249 is a deficient number, since it is larger than the sum of its proper divisors (16116751).

1972595249 is a wasteful number, since it uses less digits than its factorization.

1972595249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151.

The product of its digits is 2041200, while the sum is 53.

The square root of 1972595249 is about 44413.9082833294. The cubic root of 1972595249 is about 1254.1399267881.

The spelling of 1972595249 in words is "one billion, nine hundred seventy-two million, five hundred ninety-five thousand, two hundred forty-nine".