1241027645 has 16 divisors (see below), whose sum is σ = 1749589632. Its totient is φ = 833136960.

The previous prime is 1241027611. The next prime is 1241027713. The reversal of 1241027645 is 5467201421.

It is not a de Polignac number, because 1241027645 - 2¹⁶ = 1240962109 is a prime.

It is a super-4 number, since 4×1241027645⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867137 + ... + 868566.

It is an arithmetic number, because the mean of its divisors is an integer number (109349352).

Almost surely, 2^1241027645 is an apocalyptic number.

It is an amenable number.

1241027645 is a deficient number, since it is larger than the sum of its proper divisors (508561987).

1241027645 is a wasteful number, since it uses less digits than its factorization.

1241027645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735732.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1241027645 is about 35228.2222798710. Note that the first 4 decimals coincide. The cubic root of 1241027645 is about 1074.6337732123.

The spelling of 1241027645 in words is "one billion, two hundred forty-one million, twenty-seven thousand, six hundred forty-five".