61290349 has 4 divisors (see below), whose sum is σ = 61863264. Its totient is φ = 60717436.

The previous prime is 61290347. The next prime is 61290391. The reversal of 61290349 is 94309216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61290349 - 2¹ = 61290347 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61290343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286297 + ... + 286510.

It is an arithmetic number, because the mean of its divisors is an integer number (15465816).

Almost surely, 2^61290349 is an apocalyptic number.

It is an amenable number.

61290349 is a deficient number, since it is larger than the sum of its proper divisors (572915).

61290349 is a wasteful number, since it uses less digits than its factorization.

61290349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572914.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 61290349 is about 7828.8152999033. The cubic root of 61290349 is about 394.2732972043.

The spelling of 61290349 in words is "sixty-one million, two hundred ninety thousand, three hundred forty-nine".