61263351 has 16 divisors (see below), whose sum is σ = 90885120. Its totient is φ = 40786200.

The previous prime is 61263343. The next prime is 61263361. The reversal of 61263351 is 15336216.

It is not a de Polignac number, because 61263351 - 2³ = 61263343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263311) 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, 30426 + ... + 32376.

It is an arithmetic number, because the mean of its divisors is an integer number (5680320).

Almost surely, 2^61263351 is an apocalyptic number.

61263351 is a deficient number, since it is larger than the sum of its proper divisors (29621769).

61263351 is a wasteful number, since it uses less digits than its factorization.

61263351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3117 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 61263351 is about 7827.0908388749. The cubic root of 61263351 is about 394.2153970944.

Adding to 61263351 its reverse (15336216), we get a palindrome (76599567).

The spelling of 61263351 in words is "sixty-one million, two hundred sixty-three thousand, three hundred fifty-one".