61354642 has 16 divisors (see below), whose sum is σ = 96076800. Its totient is φ = 29351520.

The previous prime is 61354613. The next prime is 61354651. The reversal of 61354642 is 24645316.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 11077.

It is an arithmetic number, because the mean of its divisors is an integer number (6004800).

Almost surely, 2^61354642 is an apocalyptic number.

61354642 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

61354642 is a deficient number, since it is larger than the sum of its proper divisors (34722158).

61354642 is a wasteful number, since it uses less digits than its factorization.

61354642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11241.

The product of its digits is 17280, while the sum is 31.

The square root of 61354642 is about 7832.9204004637. The cubic root of 61354642 is about 394.4111120209.

Adding to 61354642 its reverse (24645316), we get a palindrome (85999958).

It can be divided in two parts, 613 and 54642, that added together give a palindrome (55255).

The spelling of 61354642 in words is "sixty-one million, three hundred fifty-four thousand, six hundred forty-two".