61400354 has 8 divisors (see below), whose sum is σ = 92945820. Its totient is φ = 30418416.

The previous prime is 61400351. The next prime is 61400357. The reversal of 61400354 is 45300416.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61400351) and next prime (61400357).

It can be written as a sum of positive squares in 2 ways, for example, as 59644729 + 1755625 = 7723^2 + 1325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61400351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140609 + ... + 141044.

Almost surely, 2^61400354 is an apocalyptic number.

61400354 is a deficient number, since it is larger than the sum of its proper divisors (31545466).

61400354 is a wasteful number, since it uses less digits than its factorization.

61400354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281764.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 61400354 is about 7835.8377982192. The cubic root of 61400354 is about 394.5090391131.

The spelling of 61400354 in words is "sixty-one million, four hundred thousand, three hundred fifty-four".