1972514569 has 9 divisors (see below), whose sum is σ = 2063073229. Its totient is φ = 1885775980.

The previous prime is 1972514567. The next prime is 1972514587. The reversal of 1972514569 is 9654152791.

It is a happy number.

The square root of 1972514569 is 44413.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1972514569 - 2¹ = 1972514567 is a prime.

It is a super-3 number, since 3×1972514569³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972514567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1020534 + ... + 1022464.

Almost surely, 2^1972514569 is an apocalyptic number.

1972514569 is the 44413-rd square number.

1972514569 is the 22207-th centered octagonal number.

It is an amenable number.

1972514569 is a deficient number, since it is larger than the sum of its proper divisors (90558660).

1972514569 is an frugal number, since it uses more digits than its factorization.

1972514569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908 (or 1954 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The cubic root of 1972514569 is about 1254.1228282662.

Multiplying 1972514569 by its sum of digits (49), we get a square (96653213881 = 310891²).

The spelling of 1972514569 in words is "one billion, nine hundred seventy-two million, five hundred fourteen thousand, five hundred sixty-nine".