61400343 has 16 divisors (see below), whose sum is σ = 87593600. Its totient is φ = 38141280.

The previous prime is 61400333. The next prime is 61400347. The reversal of 61400343 is 34300416.

It is not a de Polignac number, because 61400343 - 2⁴ = 61400327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61400347) 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, 5353 + ... + 12306.

It is an arithmetic number, because the mean of its divisors is an integer number (5474600).

Almost surely, 2^61400343 is an apocalyptic number.

61400343 is a deficient number, since it is larger than the sum of its proper divisors (26193257).

61400343 is a wasteful number, since it uses less digits than its factorization.

61400343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17742.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 61400343 is about 7835.8370963159. The cubic root of 61400343 is about 394.5090155541.

Adding to 61400343 its reverse (34300416), we get a palindrome (95700759).

The spelling of 61400343 in words is "sixty-one million, four hundred thousand, three hundred forty-three".