140451541 has 2 divisors, whose sum is σ = 140451542. Its totient is φ = 140451540.

The previous prime is 140451533. The next prime is 140451559. The reversal of 140451541 is 145154041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124880625 + 15570916 = 11175^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 140451541 - 2³ = 140451533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140481541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70225770 + 70225771.

It is an arithmetic number, because the mean of its divisors is an integer number (70225771).

Almost surely, 2^140451541 is an apocalyptic number.

It is an amenable number.

140451541 is a deficient number, since it is larger than the sum of its proper divisors (1).

140451541 is an equidigital number, since it uses as much as digits as its factorization.

140451541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 140451541 is about 11851.2252953017. The cubic root of 140451541 is about 519.8070548962.

The spelling of 140451541 in words is "one hundred forty million, four hundred fifty-one thousand, five hundred forty-one".