1261462245 has 16 divisors (see below), whose sum is σ = 2024131200. Its totient is φ = 670849344.

The previous prime is 1261462243. The next prime is 1261462247. The reversal of 1261462245 is 5422641621.

It is an interprime number because it is at equal distance from previous prime (1261462243) and next prime (1261462247).

It is not a de Polignac number, because 1261462245 - 2¹ = 1261462243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261462243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115249 + ... + 125718.

It is an arithmetic number, because the mean of its divisors is an integer number (126508200).

Almost surely, 2^1261462245 is an apocalyptic number.

1261462245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1261462245 is a deficient number, since it is larger than the sum of its proper divisors (762668955).

1261462245 is a wasteful number, since it uses less digits than its factorization.

1261462245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241324.

The product of its digits is 23040, while the sum is 33.

The square root of 1261462245 is about 35517.0697693377. The cubic root of 1261462245 is about 1080.4999528543.

The spelling of 1261462245 in words is "one billion, two hundred sixty-one million, four hundred sixty-two thousand, two hundred forty-five".